21726975

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 38489600

約数和(自身を除く): 16762625

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 79, 95, 193, 237, 285, 395, 475, 579, 965, 1185, 1425, 1501, 1975, 2895, 3667, 4503, 4825, 5925, 7505, 11001, 14475, 15247, 18335, 22515, 37525, 45741, 55005, 76235, 91675, 112575, 228705, 275025, 289693, 381175, 869079, 1143525, 1448465, 4345395, 7242325, 21726975]

約数ペア:

[(1, 21726975), (3, 7242325), (5, 4345395), (15, 1448465), (19, 1143525), (25, 869079), (57, 381175), (75, 289693), (79, 275025), (95, 228705), (193, 112575), (237, 91675), (285, 76235), (395, 55005), (475, 45741), (579, 37525), (965, 22515), (1185, 18335), (1425, 15247), (1501, 14475), (1975, 11001), (2895, 7505), (3667, 5925), (4503, 4825)]